You may experience it as lower back pain, typically on one side, that is a sharp pain, a dull ache, a stuck feeling, or feelings of numbness, tingling, or tightness of the lower back and pain in your buttock, groin, or inner thigh. Movement or prolonged sitting or standing might increase symptoms and you may feel like your leg/hip is going to give out due to weakness, instability, or pain.
SI joint pain is almost always experienced on one side of the lower back at a time. Any SI joint pain or dysfunction is due to an imbalance in the position or movement between your two hips or sides of your pelvis. Correcting this imbalance with posture alignment therapy can eliminate your SI joint pain.